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Lady_Fox [76]
3 years ago
9

10.Which device is designed to produce

Chemistry
2 answers:
Marta_Voda [28]3 years ago
5 0
The answer is a fan, it produces mechanical energy.

Please mark me as brainliest.
andreev551 [17]3 years ago
3 0

Which device is designed to produce mechanical energy?

Well, mechanical energy is the sum of potential and kinetic energy. Kinetic energy is a unit of energy in which is the reason why an object does movement, while potential energy is another unit of energy in which is the reason why an object doesn't move, or stops. While you can stop a fan or a lamp, it isn't automatic. It's manually. So the answer is (4) an oven because mechanical energy happens automatically, not manually, or for a greater reason.

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18. Suggest an explanation for the observations that ethanol, C2H5OH, is completely miscible with water and that ethanethiol, C2
nydimaria [60]

Answer:

              Ethanol is completely miscible due to <u><em>presence</em></u> of Hydrogen bonding.

              Ethanethiol is partially miscible due to <u><em>absence</em></u> of Hydrogen Bonding.

Explanation:

                     The miscibility of liquids depend upon the intermolecular interactions between the two liquids. The stronger the intermolecular interactions the more miscible will be the liquids.

Among the two given examples, Ethanol is more miscible in water because it exhibits hydrogen bonding which is considered the strongest intermolecular interaction. Hydrogen bonding occurs when the hydrogen atom is bonded to more electronegative atoms like Fluorine, Oxygen and Nitrogen. In this way the hydrogen atom gets partial positive charge and the electronegative atom gets partial negative charge. Hence, these partial charges results in attracting the opposite charges on other surrounding atoms.

While, in case of Ethanethiol the hydrogen atom is not bonded to any high electronegative atom hence, there will be no hydrogen bonding and therefore, there will be less interactions between the neighbour atoms.

6 0
4 years ago
Help please! I’m in the exam <br> A B C or D
NeX [460]
The answer is d for the answer
6 0
3 years ago
What is the potential energy of the ball when it gets to its maximum height just before falling back to the ground?J
erastovalidia [21]

Answer:

9.8 joules

Explanation:

due to acceleration due to gravity

4 0
4 years ago
The strongest intermolecular interactions between propanol (CH3CH2CH2OH) molecules arise from hydrogen bonding
pickupchik [31]

The claim that the strongest intermolecular interactions between propanol molecules arises from hydrogen bonding is True.

Intermolecular forces are weaker attraction forces that are utilized to define physical characteristics of molecules such as:

  • boiling point
  • temperature
  • density
  • melting points

Hydrogen bonding is an type of intermolecular forces.

It is a type of dipole-dipole interaction that only happens when a hydrogen atom is connected to the atomic element of oxygen, nitrogen, or fluorine.

From the question given, in the propanol (CH3CH2CH2OH) molecule, the hydrogen usually has a partially positive charge which attracts the partially negative charge of the oxygen.

Therefore, we can conclude that the claim is True.

Learn more about Hydrogen Bonding here:

brainly.com/question/10904296?referrer=searchResults

3 0
3 years ago
Which properties of glass are a promblem in transporting food and drink?​
poizon [28]

Answer:

awww this is so cuteeeee

Explanation:

oml really

5 0
3 years ago
Read 2 more answers
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